Anvil for harvesters



Ap w. J. B-ORST 1,997,674-

ANVIL FOR HARVESTERS Filed June '29, 1931 I NV EN TOR.

UJHLTERLIEURET.

WIT/V555 ATTORNEY. WJZTEIP AaMQFMAA/ Patented Apr. 16, 1935 '1,"

UNITED STATES PATENT OFFICE ANVIL FOR HARVESTERS Walter J. Burst,Moline, Ill., assignor to Deere & Company, Moline, 111., a corporationof Illinois Application June 29, 1931, Serial No. 547,683

1 Claim. (01. 78-46) My invention relates to anvils used especiallycavities H, as better shown in Figure 3, to rein repairing knife bars ofharvesting machinery, ceive rivet heads while riveting a section to theand has for its object to'provide an anvil by the knife bar. The lowerportions of the openings a use of which the various rivets, by which thesevare reduced in diameter to provide ledges on eral parts of a knifebar and cutter bar are held which the blocks In rest. The front legs 29of together, can be readily removed and replaced. the structure havetransverse slots 0 for a pur- Referring to the drawing in which similarnupose hereinafter stated. merals indicate identical parts:-- Presumingthat it is necessary to remove one Figure 1 S a p V ew Of y p ove v ormore of the sections 8 from the knife bar 9,

Figure 2 is a front elevation of Figure 1 showthe bar is placed on theanvil, as shown in Figinc" in fi e lines p r Of a knife bar in po o ures2, 3 and 4, with the bar resting on the upfor beheading the rivets ofthe sections resting on per forward surface of the anvil with the seetheanvil; 7 tions vertically disposed against the forward face u e 3 s aSection on the line 33 of F gof the anvil; with a suitable tool sharpblows ure 1 illustrating the position of a knife bar as in on the end I2of the section will remove the Figure heads of the rivets securing thesection to the Figure 4 is a reduced plan view of Figure 2; knife bar,this operation being repeated accord- Figure 5 is a reduced plan viewshowing in fine ing to the number of sections to be removed, the linesthe position of a knife bar for the operabar 9 being readily slidable onthe surface of tion of removing a rivet; and, the anvil, and thesections movable in the slots 0 Figure 6 is a plan view showing in finelines of the legs b. It will be noted that when a secthe position of aknife bar on the anvil when tion is being operated upon the adjacentsecnew rivets are to be inserted. tions are in the grooves c andconsequently the The anvil is a solid metallic structure probar 9 andthe sections thereon are prevented vided with bolt holes through whichbolts are from tilting and are guided in a longitudinal employed tosecure it to a bench 2, or other movement of the bar. suitable support,as illustrated in various figures After the heads of the desired numberof rivin the drawing. The rear part 3 of the structure ets have beenremoved the bar 9 is placed flat is to accommodate the placement ofledger plates upon the anvil so that a rivet registers with the on guardfingers or to remove them therefrom opening 1, as shown in Figure 5, andby using and is particularly described in the patent to a punch therivet can be quickly displaced and Ronald Tolmie dated November 20,1928, No. falls through the opening 1 onto the bench or 1,692,004. Thispart is included in the structure support 2, the remaining rivet headsresting in to present in a single body means by which spethe groove 6and movable therein as the bar cific parts of the cutting devices of aharvester 9 is passed along the anvil. In the operation of can beassembled or repaired. The forward part securing a section to the knifebar 9 the bar is of the structure is particularly adapted for use inmoved bodily rearward on the anvil until it rests removing knifesections from a knife bar 106- in the groove 5 with the sections restingon a 40 caus of d ma of h a nature as t impa fiat portion of the uppersurface of the anvil, as the Cutting fi yshown in Figure 6 and in dottedlines in Figure The under Part of the Structure is Cut away 3, thesection to be secured thereon is loosely at the sides and front and rearthereof so that held on the bar by the rivets which have been legs arefirmed to rest firmly on the bench inserted through the holes in the barand the A 5 ggi i g? E section, the heads of the rivets resting in theper Sur ace 0 6 par an 18 0 Su Glen W1 concavities in the anvil blocksID. The exposed to accommodate a knife bar as shown in dotted ends ofthe rivets are then upset by the use of lines in Figure 3. Adjacent theforward edge of the part a is a groove 6, parallel to the groove 5 andpljoper Implement after whlch the par f lesser Width, which has acentral opening 7 sections 8 thereon can be moved longitudinally rextending through the part a on Opposite Sides on the anvil for furtherremoval or replacement 00 of the transverse central line of the groove 5of sectionsare openings a corresponding in distance apart The anvil hasSupplled a long fell? Want and to the distance between the rivetssecuring the i p e y Valuable for its Completeness in that sections 8 tothe knife bar 9. In these openings sections and ledger plates can bequickly and U a are inserted anvil blocks I0 provided with coneasilyremoved and replaced.

What I claim is An anvil, for use in repairing sickles comprising aknife bar and a plurality of knife sections riveted thereto, comprisinga. flat horizontal upper surface having a groove therein, said groovebeing wider than the width of the knife bar and deeper than thethickness of the knife bar, and an anvil block in the bottom of saidgroove, the top of said anvil block being spaced from said horizontalupper surface a distance sunstantially equal to the thickness of theknife bar, said anvil block having a depression therein, whereby thesickle may be rested upon the anvil with the knife bar in said grooveand the knife sections bearing upon said horizontal upper surface andthe head of a rivet may be received in the depression in said anvilblock.

WALTER J. BORST.

